Oil burner



S. W. BATES July 5,1927. I v 1,634,819

OIL BURNER Filed ly 31. 1924 In van in]:

monw. 6.5

Patented July 5, 1927.

UNITED STATES PATENT ()FFHCE. SOLOMON W. BATES, 0F PORTLAND, FRANK E. HiAINES EXEOUTOR OF i SOLOMON W. BATES, DECEASED.

011 BURNER.

Application filed July 31,

located somewhat above the opening and having a stem or support extendingvertically through theopenin'g. This stemextend ing vertically through the center of the flame has the effect of separating the flame and the stem as it increases in height is spread out laterally so as to gradually cause the sections of the flame as it ascends to move from a perpendicular to a horizontal direction. Thus the body of the flame while it is battled against the under portion of the spreader is also spread out into largearea.

A further object of the invention is to introduce into the enlarged stem which is made hollow a supply of air to be added to the flame for the purpose of increasing the COD'lbllStlOIl of the oil.

For this purpose my invention includes in its preferable form a thickened stem which is made hollow and perforated with means by which a supply of air may be introduced into the lower portion of the stem passing outwardly through the holes made'in the stem and through the body of the upper portion of the spreader as well.

This air may be taken from the air blast pipe, which usually accompanies the burner, carrying into the enlarged stem a blast of air under pressure, which is in position to be mixed with the flame which passes upward around said stem, bathing and spr ading around the enlarged upper portion of the stem.

Instead of being forced in by the blower, the air may be sucked in from any portion of the burner, the upward velocity of the flame creating a certain amount of vacuum for the purpose of pulling in the air.

I have illustrated in the accompanying drawing 'a burner of the type referred to, containing a spreader which illustrates the general construction of my burner and shows an ordinary form of burners having a blast of air or air under pressure supplied to it.

Referring to the drawing,

1924. Serial No, 729.228.

Fig. l,-shows a central longitudinal sec iron, 2 is the base of the same, 8 represents an oil inlet connecting with the'passage or outlet 4, which discharges upwardly through the center of the burner. 5 is an enlarged oil inlet connecting with the passage 3.

At the outer end of the inlet pipe '5 is a ping 15 into which enters an oil supply pipe 10 and an oil supply pipe 16 connecting by means of a suitable fitting with the oil sup. ply pipes 10 and 11.

The flame is discharged through the circular opening 6 in the top of the pot 1 and air is supplied from a suitable fan through the air pipe 8 entering the side of the pot in a tangential direction through an opening 9 formed in the pot.

The parts thus far spoken of constitute no part of my invention and are well known in burners of this type.

According to my invention, I make use of a spreader 7 having at the top a disk 7'; some little distance above the opening 6 and circular in form.

The flat top or disk 7 is somewhat greater in diameter than the opening 6 in the burner.

Beneath and supporting the disk 7 is an enlarged stem which acts to divide the flame centrally and by an increasing diameter as it ascends, turns the flamefrom a vertical to a horizontal position or substantially so and tends to spread the flame in all directions with an upward turn to the same.

The upper end of the stem which is the widest portion. of the same turns inwardly to join the disk or top forming rounded edges at the upper part of the structure as it joins the stem.

The lower end of the stem rests, as here shown, on the bottom of the pot on a plurality of legs 12 which straddle the inlet 4;.

The legs 12 surround a raised projection a through which the oil enters the pot.

As here shown, the spreader is formed hollow with 21v SOllCl lower end which forms a battle plate for the incoming oil and numerous openings 23 are made in the hollow,

SAID

1 represents.

2 osanw spreader through which eompreased air will he injected to be added to the Flame as itsurrounds the spreader.

For the purpose oi. introducing air into the body of the spreader, I connect; the stem with the air pipe 8 by the ln-aneh air pipe 20 which passes through the side of the pot and enters the side of the stem at the spreader. A damper 21 is placed in the branch pipe 20 and a damper is loeated in the air pipe 8. A

By means of these two dampers the relative amount oi? air entering the pot direet and the amount direrted to enter the spreader may be aeeura'ieh: determined.

A spreader such aa l hare donrribed in a burner o't thii type enables rue to spree d the flame over a very large sui.lriee and iHH'i lC- nlarly to direct it around. the lower edge oi the Vater legs of a boiler where it in moat needed and. to add to the heating;- uality of the oil flame by pTOtllulllQj a Si, ainihiry eon hustion at; the point where it in used.

While I have shown my spreader as applied to a hollow pot; having air under pressure blown into said pot with an oil supply taken from the bottom oi, the same, any burner provided with an upwardly acting discharge opening is adapted to receive such a Spreader with beneficial results to the co1nhuation.

It burner comprising, in oon'ibinatiom amixing ehan'iber having separate inlets for fuel and for primary air sutlieient to support combustion and having a flame discharge opening at its top; and a hollow flame spreader mounted centrally on the bottom of said chamber having connection with an air supply and extending upward through d thnne discharge opening with its walls diverging outward so that the upper edge of mid spreader laterally beyond the edge of said opening, whereby the flame is gradually spread and directed laterally; there being a elosed top on said spreader and holes in its diverging walls above said flame opening :t'or eeteape of heated air from the interior of said sip reader into this diverging flame.

SOLOMON lV. BATES. 

